Create a seeded pseudo-random number generator (xoshiro128** variant).
The returned function produces independent floats in [0, 1) on each call.
Useful when you need reproducible randomness (e.g., deterministic patterns).
Parameters
seed: number
Any integer seed.
Returns ()=>number
A stateful RNG function.
Example
constrng = createSeededRandom(42); consta = rng(); // always the same value for seed 42 constb = rng(); // next value in the sequence
Create a seeded pseudo-random number generator (xoshiro128** variant). The returned function produces independent floats in [0, 1) on each call. Useful when you need reproducible randomness (e.g., deterministic patterns).